November 17, 2009
Hi. First of all, I'm new to this forum, so if I've posted in the wrong place, or broken some etiquette, let me know.
Recently I bough 3 Dwarf Rainbowfish. They seem to have settled in fine and are just starting to show their full colours. Unfortunately, one of them has a small white lump on its lower lip. None of the other fish in the tank have anything similar, and it doesn't seem to be stopping the individual eating, but it's still concerning me.
I googled it, but all I found was information on whitespot (which it may well be, but I can't see any 'small, sugar grain-like spots' anywhere else).
I may try and upload a photo shortly.
March 15, 2009
I'm fairly new to rainbowfish but they seem to be prone to injuring their lips bybanging into things like the side of a bag in transport or the tank glass etc. It could also be columnaris. I'd keep an eye on it, keep your water as pristine as possible(low nitrates), and see if it gets any worse. Have a look at this thread.
August 12, 2008
I used to keep and breed up to 30 different species of rainbows and they are all prone to marks on lips and bodies as they are constantly sparring or spawning and end up getting quite badly knocked about, personally I would just keep and eye on things and like plaamoo said keep your water in tip top condition and at most add a dose or two of protozin.
the vast majority of rainbows will spawn/spar early in the morning and that is when the damage is done, Rasboras are very similar in that they are prone to mouth damage and usually it clears up as fast as it appears.
November 17, 2009
Thanks for your replies.
I now suspect it to be sparring/bumps; I see them getting in each others way quite regularly, which never goes down well. /wink.gif" style="vertical-align:middle" emoid=";)" border="0" alt="wink.gif" /> They also don't seem to be the most careful swimmers (hence 'accidentally' getting in each others way).
I'll keep an eye on it, as you suggested, and stick tightly to my water-change schedule.
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